jika p= tanx -1/cosx dan q= sinx maka p/q adalah

p = tanx - 1/cosx
q = sinx

p/q = (tanx - 1/cosx)/sinx
= (sinx/cosx - 1/cosx)/sinx
= ((sinx - 1)/cosx)/sinx
= (sinx - 1)/sinxcosx